acid refracturing program increases reserves, cottonwood creek unit, washakie county, wyoming

this paper presents the results of coupling a reservoir simulator with an acid fracture design program. this model is used to identify refracture candidates and to optimize acid refracturing treatments. methods used to study treatment efficiency for specific reservoir properties are given for various acid systems. (author abstract) 10 ref

relating crop-yield response to water-table fluctuations

field data of water-table depth fluctuations under cotton grown in egypt are used to relate water-table depth frequency of occurrence to yield. daily water-table levels are measured. a multiple linear regression analysis is used to develop site-specific population parameters that allow evaluation of the effect of various water-table depth..

economic downturn hits worldwide sales

there are still no reliable signs of a recovery in important customer industries for fibre products in the us. the clothing sector is suffering from the general economic uncertainty. the sales volume of fibres and filaments for this sector has declined noticeably since the 4th quarter 1990. yarn and fabric imports, especially from asia, w..

otolith distributed model. frequency response

a distributed parameter model of the mechanical response for the otolith organs has been recently published. this model includes a viscoeleastic gel layer which introduces additional damping and grater stiffness. these additions produce results which limit the otoconial layer deflection and match expected performance. the nondimensionaliz..

calculation of velocity of the begining of fluidization of granular-fibrous materials

the influence of fibration and porosity of granular-fibrous materials (cotton seeds and soay beans) on the rate of fluidization start was considered. the value of the rate of fluidization start depends on the factor of form and fluffyness of the particles equation suggested for the calculation of the rate of fluidization start describes e..

arsenic acid desiccant residues in cotton

arsenic acid is the principal chemical desiccant used to prepare cotton for harvesting by stripping on as many as million acres annually in texas and oklahoma. because the arsenic acid is applied when bolls are open, cottons from treated fields contain arsenic. the amounts present on cottons from desiccation trails were influenced by leve..

reduced tillage system with furrow diking for cotton production

a study was conducted from 1982-87 to determine the production potential and practicality of a reduced tillage system that used furrow diking as a key operation. the reduced tillage system (rt) was compared with conventional (ct) and narrow row (nr) production systems. the rt system significantly reduced runoff, increased moisture storage..

radiation resistance of thermoset plastics. ii. phenolic plastics with organic fillers

two thermoset phenolic plastics filled with organic fillers (wood flour and cotton fabric shreds) were irradiated at high dose rates (under exclusion of air) and with extremely low dose rates in air. the mechanical and electrical properties are compared with each other and with the results obtained from previous investigations involving i..

graft polymerization of 2-hydroxyethyl methacrylate onto plasma pretreated cotton, silk, and polyester fibers

graft polymerization of 2-hydroxyethyl methacrylate was made onto plasma pretreated fabrics of cotton, silk, and polyester homopolymerization also took place during the graft polymerization, but the percent of the homopolymer formation was comparatively small therefore, kinetic analyses of graft polymerization were undertaken based on the..

consumer commodities is an important problem of the institute

the success in scientific and manufacturing association khimvolokno in development of engineering, production of equipment, projecting and manufacturing on obtaining the high-modulus viscose fiber, that have the properties like cotton is marked. the main consumers of viscose fibers which are cotton (55), silk (20), wool(51), flax (5) bran..